Internal-combustion engine.



No. 885,773. PATENTED NOV. 13,' 1906.

' F. W. BRADY.

INTERNAL COMBUSTION ENGINE.

APPLIOATION rum) SEPT. 29. 1903. 4

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PATENTED NOV. 13, 1906.

F. W. BRADY. INTERNAL COMBUSTION ENGINE.

APPLIOATION FILED SEPT. 29, 1903.

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FRANCIS W. BRADY, or ENGLEWOOD, NEW JERSEY.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters .Patent.

Patented Nov. 13. 1906.

Application filed September 29, 1903. Serial No. 175,087.

To all whom it mag concern:

Be it known that I, FRANCIS W. BRADY, a citizen of the United States, residing in Englewood, in the countyof Ber en and State of New Jersey, have invente certain new and useful Improvements in Vaporizing Apparatus for Internal-Combustion Engines, of which the following is a specification.

My improvements relate to vaporizing apparatus for internal-combustion engines wherein a liquid hydrocarbon is vaporized for producing the hydrocarbon element of the explosive charge.

My improved vaporizer is adapted to be heated by the exhaust-gases in the engine to vaporize a heavy hydrocarbon oil and to mix with the hydrocarbon vapor so produced a certain quantity of air before it is introduced into the, combustion-chamber of the engine.

-My improved -vaporizer is particularly adapted to be used in connection ,With an internal-combustion engine in which the vapor produced by the vaporizer is added to a uantity of air in the combustion-chamber o the engine to form an explosive mixture. For this purpose the air-inlet valve of the vaporizer may be set to admit asuflicient quantity of air to carry the hydrocar bon vapor, but not enough to form an explosive mixture therewith.

Referring to the drawings, Figure 1 is a .sideelevation of my improved vaporizing apparatus connected to an engine of my own design. Fig. 2 is an axial section of the vaporizing-chamber on a larger scale. Fig. 3 is a cross-section on the line 00" of Fig. 2. Fig. 4 is an end view of the air-inlet valve with the adjusting-nut removed, and Fig. 5 is an" enlar ed-view of the needle-valve in the oil-supp y pipe. I

Referring to Fig. 1, Us the cylinder-casing of the engine, to which vapor is led from the vaporizer V through the inlet-pipe 27 and from which the exhaust is led through the vaporizer by the exhaust-pipe 19. Supported above the vaporizer is an oil-tank 42 which communicates with the vaporizer through the pipe 22, which contains the stopcock 44 and the needle-valve 22. This pipe supports an arm '31, on which the lever 31 is pivoted at y. This lever carries a needle 32, which coacts with an orifice 29 in the diahragm 28 of the needle-valve 22 to reguate the flow of the oil from the tank 42 to the vaporizer. The lever 31 engages with a cap 30 on the governor G. This governor is also connected to the valve 26 in the vapor 'feed pipe 27. v

Rei'errin to Figs. 2, 3, and 4, 1t w1ll be seen that the vaporizing-chamber is made in two sections bolted together at z. The va orizer is divided into two chambers by t e curved partition 21', which forms the bottom of the chamber 20 into which the 011 to be vaporized is fed through the pipe 22 and also the top of that portion of the exhaustpipe 19 which is included in the vaporizercasing 18 The chamber 20 is provided with an outlet-passage 25, to whichthe vapor-feed pipe 27 is attached, and at the other end with an air-inlet passage 23, controlled by a valve 24, supported in a casing 24*. The stem of the valve is screw-threaded and provlded with a nut, so that the extent of. the opening plate 21,, which vaporlzes the oil dropping upon it from the pipe'2 2. The vaporso produced is mixed with air entering through the passage 23 and is drawn into the combustion-chamber of the engine through the outlet 25 and the pipe 27 As the speed of the engine increases the governor decreases the extent of the opening of the needlevalve 22 and the vapor-valve 26, thus simultaneously regulating the amount of vapor drawn from the vaporizer and the amount of 011 fed to the vaporizer. By this means the accumulation of the hydrocarbon vapor in .the vaporizer as the amount of'the vapor feed decreases is prevented and the character of the mixture is maintained substantiall the same at all times.

T e casing 24 supportsa screen 23 m the air-passage 23 ,to prevent the admission of form n particles-in the. atmosphere.

1. An internal-combustion engine having a vaporizer comprising a vzaponzing-chamber provided with a curve s raymg-sur face, a-hot-fluid passage forme --.in part by the plartition bearing said surface, a valve. for t chamber and an outlet onthe other end connecting with' the explosion-chamber of the engine, afuel ta'nk connected said vaporizer, a regulating-valve for varying the amount of fuel fed to the vaporizer, a second e admission of 'air at one sideof said IIO regulating-valve between the engine and vacponzer for varying the amount of vapor fe to the engine, a centrifugal governor geared to the main shaft of the engine, and means connecting said governor with both of said valves, whereby a variation of the speed of the engine varies proportionally the amount of vapor fed to the engine and of fuel fed to the vaporizer, substantially as described.

2. An internal-combustion engine havin a vaporizer adapted to supply an saturated with vaporized fuel, said vaporizer comprismg a vaporizing-chamber rovided with a spraying-surface, a regulab e valve for the admission of air at one side of said chamber and an outlet at the other end connecting with the explosion-chamber of the engine, a fuel-tank-connected with said vaporizer, a regulating-valve forvarying the amount of fuel fed to the vaporizer, a second regulatlng-valve between the engine and vaporizer for varying the amount of vapor'fed to the engine, a governor geared to the main shaft of the engine and means connecting said governor with both of said valves, whereby a varlation of the speed of the engine varies proportionally the amount of vapor fed to the engine and of fuel fed to the vaporizer, substantially as described.

3. A vaporizer, having a casing, a curved partition therein engaging with the ends and sldesof the casing and dividing the vaporizer into two chambers, means for spraying fuel upon one side of said partition, means for conducting air through the chamber into which the fuel enters, and means for conducting a heating fluid through the other of said chambers. I

4. A va orizer having a casing, a curved partition t erein engaging with the ends and sides of the casing-and dividing the vaporizer into two chambers, means for spraying fuel upon the convex side of said partltion, means for conducting air through t e chamber into which the fuel enters, and means for conducting a heating fluid through the other of said chambers.

5. A vaporizer, having a cylindrical casthe ends and sides of the casing and divides the vaporizer into two chambers, means for spraying fuel upon the convex side of said.

partltion, means for conducting air through the chamber into which the fuel enters and means for conducting a heating fluid through the other of said chambers.

7. A vaporizer having a casing, a partition therein engaging with the ends and sides of the casing and dividing the vaporizer into two chambers, means for supplying fuel to one of said chambers, means for conduct' air through-the chamber to which the ins is sup lied, means for conducting a heat' fluid through the other of said chambers a iid an adjustable valve controlling the flow of air through the incl-chamber. v

In witness whereof I have hereunto signed my name, this 23d day of Se tember, 1903,

in the presence of two subscri ing witnesses.

FRANCIS W. BRADY. Witnesses:

CHAS. D. Srarnron, Hnznnmn Burwnrs'rLE. 

